SH7080_09 Datasheet, PDF (1279/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 23 Flash Memory
Table 23.1 (1) Relationship between FWE and MD Pins and Operating Modes
(SH7083 and SH7084)
ROM
ROM
User
User
Reset Invalid Valid
Program Boot
Boot
Programmer
Pin
State
Mode
Mode
Mode
Mode
Mode
Mode
RES
0
1
1
1
1
1
Setting value
FWE
0/1
0
0
1
1
1
depends on the
condition of the
MD0
0/1
0/1*¹
0/1*²
0/1*²
1
0
specialized
MD1
0/1
0
1
1
0
0
PROM
programmer.
Notes: 1. MD0 = 0: 8-bit external bus, MD0 = 1: 16-bit external bus
2. MD0 = 0: External bus can be used, MD0 = 1: Single-chip mode (external bus cannot
be used)
Table 23.1 (2) Relationship between FWE and MD Pins and Operating Modes
(SH7085 and SH7086)
ROM
ROM
User
User
Reset Invalid Valid
Program Boot
Boot
Programmer
Pin
State
Mode
Mode
Mode
Mode
Mode
Mode
RES
0
1
1
1
1
1
Setting value
FWE
0/1
0
0
1
1
1
depends on the
condition of the
MD0
0/1
0/1*¹
0/1*²
0/1*²
1
0
specialized
MD1
0/1
0
1
1
0
0
PROM
programmer.
Notes: 1. MD0 = 0: 16-bit external bus, MD0 = 1: 32-bit external bus
2. MD0 = 0: External bus can be used, MD0 = 1: Single-chip mode (external bus cannot
be used)
Rev. 4.00 Dec. 15, 2009 Page 1219 of 1558
REJ09B0181-0400